package edu.sctu.practice.zhengsenwen.JavaLesson.AbstractCla;

/**
 * Created by zhengsenwen on 2015/11/5.
 */
public abstract class Lessons {

    public void openComputer(){
        System.out.println("open the computer.");
    }

    public abstract void learn();

    public void closeComputer(){
        System.out.println("close the computer.");
    }
}
